docs: fix color, add catalog (#625)

catalog-info.yaml

@@ -0,0 +1,16 @@
+---
+apiVersion: backstage.io/v1alpha1
+kind: Component
+metadata:
+  name: nowplaying
+  title: Nowplaging Service
+  description: |
+    The nowplaying daemon is the python server central to our songticker.
+  annotations:
+    backstage.io/techdocs-ref: dir:.
+    github.com/project-slug: radiorabe/nowplaying
+spec:
+  type: service
+  lifecycle: production
+  owner: it-reaktion
+  system: rabe-songticker

mkdocs.yaml

@@ -1,4 +1,4 @@
-site_name: RaBe nowplaying
+site_name: RaBe nowplaying Service
 repo_url: https://github.com/radiorabe/nowplaying
 repo_name: radiorabe/nowplaying
 
@@ -7,11 +7,13 @@ theme:
   palette:
     # Palette toggle for dark mode
     - scheme: slate
+      primary: '#00c9bf'
       toggle:
         icon: material/brightness-4
         name: Switch to light mode
     # Palette toggle for light mode
     - scheme: default
+      primary: '#00c9bf'
       toggle:
         icon: material/brightness-7
         name: Switch to dark mode